To understand evolution, we need to understand the age of the Earth.

So how old is the Earth? And how do we know?




Earth Science: Crash Course History of Science #20




How Do We Know How Old the Earth Is?




How We Know The Earth Is Ancient




World's Most Asked Questions: How Old is Earth?




Four ways to understand the Earth's age




"Creation's Story - Evidence for an Ancient Earth"




Is radiometric (or radioisotope) dating reliable? Yes. Radiometric Dating Does Work!